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Swirling-flow mixing

Jet Collision Turbulent or Swirling-flow Mixing Most Relevant Citations... [Pg.262]

The second type of mixer uses two impinging jets exiting from two borings to contact the reactants (for more detailed information, see Section 1.3.33, Jet Collision Turbulent or Swirling-flow Mixing). [Pg.615]

Nonpremixed edge flames (a) 2D mixing layer (From Kioni, P.N., Rogg, B., Bray, K.N.C., and Linan, A., Combust. Flame, 95, 276, 1993. With permission.), (b) laminar jet (From Chung, S.H. and Lee, B.J., Combust. Flame, 86, 62,1991.), (c) flame spread (From Miller, F.J., Easton, J.W., Marchese, A.J., and Ross, H.D., Proc. Combust. Inst., 29, 2561, 2002. With permission.), (d) autoignition front (From Vervisch, L. and Poinsot, T., Annu. Rev. Fluid Mech., 30, 655, 1998. With permission.), and (e) spiral flame in von Karman swirling flow (From Nayagam, V. and Williams, F.A., Combust. Sci. Tech., 176, 2125, 2004. With permission.). (LPF lean premixed flame, RPF rich premixed flame, DF diffusion flame). [Pg.57]

Oyama and Aiba (O10) observed the mean flow patterns in a mixing tank by use of a small rotating pointer, similar to a weather vane, suspended at the end of a pipe at different locations in the vessel. Their studies on two-blade flat paddles in an unbaffled cylindrical vessel confirm the expected presence of a vortex, deepening with speed of rotation, and of swirling flow about the tank axis with a slight amount of flow up the tank walls and down in the center. [Pg.130]

In a complex geometry, such as the present Triple Annular Research Swirler (TARS) in which several co-swirling or counter-swirling flows interact, the vortical evolution and breakdown are complex. Detailed velocity measurements are necessary to resolve the physical processes that involve mixing and interaction of three distinct air streams [4], As the first phase of this project, nonreacting velocity flow fields downstream of TARS were studied by LDV and PIV. Basic flow structures are discerned by the experimental data, and comparison of flow structure caused by different swirler combinations is made. [Pg.98]

Flame type E. Flat, coanda. Very high swirl 2. Some recircul ion. Fast mixing. Swirled flow contained by a refractory quad. The convex version (shown) is used to avoid flame Impingement on fomace ioads, and provides a wider heat spread. A concave version (not shown) focuses radiation in large "hot spots . Both versions enhance and direct refractory radiation. [Pg.248]

Radial gas phase flow from the center outward in the wash zone formed by two discs. To mix intensively wash liquid is sprayed centrally by means of a nozzle central into the gas flow. The throat opening in the center of the wash zone may be adjusted to the gas flow by means of the check ring. To improve droplet separation swirling flow is induced by baffles mounted on the disc rim (Fig. 3-22). [Pg.562]


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